Reņģe Manor (Latvian: Reņģes muižas pils, German: Ringen), also called Ruba Manor, is a manor house for the von Nolcken family that was built between 1881 and 1882 in the historical region of Zemgale, in Latvia. It is located about 2.5 km west of both the village of Ruba and the railroad bridge where the Glūda–Reņģe Railway crosses the Vadakste river along the border of Latvia and Lithuania. Manor building currently houses the Ruba Elementary School.